Water Column, Pump & Control Parts

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McDonnell & Miller LWCO Gasket 150-14 - CMMP212 - Oswald SupplyMcDonnell & Miller LWCO Gasket 150-14 - CMMP212 - Oswald Supply
10-Pack - 5/8" Standard Gauge Glass Washer - Oswald Supply
10-Pack - 5/8" Brass Gauge Glass Washer - Oswald Supply
10 Pack - 3/4" Standard Gauge Glass Washer EPDM - Oswald Supply
10-Pack - 3/4" Brass Gauge Glass Washer - Oswald Supply
Gasket Kit to Fit General 2A-710SL Filter (G-29A)Gasket Kit to Fit General 2A-710SL Filter (G-29A)
Sight Glass/Slipnut Gasket for 2" (G-182)Gauge Glass Gasket Replacement Kit (G-193)
Sight Glass Circle for 2" Slipnut (SG-512)Sight Glass Circle for 2" Slipnut (SG-512)
Sight Glass/Slipnut Gasket for 2" (G-182)
2" x 1 1/2" Slipnut for 2" Sight Glass (SN-502)
Gasket to Fit McDonnell & Miller (M-35)Gasket to Fit McDonnell & Miller (M-35)
Strainer to Fit Suntec J & H Model PumpsStrainer to Fit Suntec J & H Model Pumps
Coupler to Fit B&G Models 1q 1/2, LD3, HD3 (SSC-780)Coupler to Fit B&G Models 1q 1/2, LD3, HD3 (SSC-780)
Flange Gasket to Fit Taco and, Grundfos (T-45)
Strainer to Fit Suntec A-70 Series Pumps 1 1/8" High
Gasket to Fit McDonnell & Miller (M-37)Gasket to Fit McDonnell & Miller (M-37)
Blowdown Kit (SSC-300A)Blowdown Kit (SSC-300A)

Blowdown Kit (SSC-300A)

SSC-300A
$66.63

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Water Column FAQs

A water column mounts to a steam boiler and houses the sight glass and low water cut-off, giving a visual reading of the boiler's water level.

A low water cut-off gasket seals the connection between the LWCO device and the boiler or water column, preventing leaks at that fitting.

A circulator coupler connects the pump motor shaft to the impeller shaft, transferring rotation so the circulator can move water through the heating system.

A blowdown kit is used to periodically flush sediment from a boiler's low water cut-off and water column, helping keep the device reading accurately.